Hazardous air pollutant

The Vietnam Environment Administration, Ministry of Natural Resources and Environment and the US Embassy in Vietnam have provided updated statistics at aqicn.org, a worldwide air quality monitoring data coverage website. In Hanoi, the air quality index on March 1 to 3 at the US Embassy and United Nations International School in Hanoi ranged from 114 to 388. The particulate matter 2.5 (PM2.5) was three times higher than national standards and seven times higher than World Health Organisation standards. The greater the level of air pollution accompanied by the greater the health concern. Air is considered to be unhealthy when the air quality values are above 100. When the index ranges from 101 to 200, old people and those with heart and respiratory problems are advised to not go out often, and during index results from 201 to 300 they are advised to stay indoors. When the index is above 300, even healthy people should not go out. The air quality index in Hanoi ranked similar levels as … [Read more...] about Hanoi struggles with air pollution

Hanoi, Ho Chi Minh City and the beloved tourist destination Ha Long are being plagued by severe air pollution, according to a new study released Thursday. The environment ministry’s study between 2011 and 2015 found the air quality has become worse in many urban areas, especially the two largest cities and Ha Long. Nitrogen dioxide (NO2) concentration in Hanoi was measured at up to 1.3 times above the permitted levels and in Ha Long 1.2 times. In Ho Chi Minh City’s District 1 it has been found at twice the permitted level. High levels of nitrogen dioxide increase the chance of respiratory problems. It inflames the lining of the lungs, and can reduce immunity to lung infections, causing problems such as wheezing, coughing, cold, flu and bronchitis. Children, people with asthma and old people with heart problems are most at risk. Hoang Duong Tung, the deputy director of the Vietnam Environment Administration, said traffic and industrial activities are major sources of air … [Read more...] about Air pollution in Vietnam cities hit unhealthy levels: government study

Pollutant concentrations in the air ranged between 114 and 159 during the day and suddenly peaked at 388 at 9am on March 1 - a level deemed hazardous and which can cause serious health problems. The PM2.5 particulate level recorded was seven times higher than the permissible level set by the World Health Organization. PM2.5, also described as super fine particles, is the most harmful air pollutant to human health and can cause serious respiratory problems. According to the AQI Levels of Health Concern, the air quality recorded in Hanoi can have adverse affects on people with lung and heart diseases, the elderly and children. The US Embassy noted that its measurements only reflect air quality near the area of the Embassy, not the entire city. Measurements by the Vietnam Environment Administration also show that between February 27 and March 3, concentrations of PM10 and PM2.5 were high, especially when there were heavy volumes of traffic. PM10 particulate matter is 10 micrometers … [Read more...] about Air pollution in Hanoi reaches alarming levels

Hanoi (VNA) -Â Air pollution in the capital city of Hanoi, which has been bad since March 7, is so severe now that health experts have warned people to stay indoors.
The Air Quality Index at various air monitoring stations across Hanoi showed dangerously high levels on March 13 night. For instance, it was at 214 at Nhon street in Bac Tu Liem district, which is very high. Earlier, on March 7, the index touched 294 here, while it was at 263 on Pham Van Dong street.
An index of above 300 will have adverse effect on people, according to the US Environment Protection Agency.
Hanoi Peopleâs Committee Chairman Nguyen Duc Chung admitted that the cityâs air quality was at âred alert levelâ.
At a recent meeting with concerned agencies, Chung said that the high level of air pollution was the result of the large number of cars and motorcycles in the city that have crossed their expiry dates.
âHanoi has nearly six million motorcycles, of which 2.5 million passed their expiry date and … [Read more...] about Air pollution in Hanoi reaches hazardous levels

Viet Nam News HÀ NỘI - Air pollution in the capital city, which has been bad since last Tuesday, is so severe now that health experts have warned people to stay indoors. The Air Quality Index at various air monitoring stations across Hà Nội showed dangerously high levels on Monday night. For instance, it was at 214 at Nhổn Street in Bắc Từ Liêm District, which is very high. Earlier, last Thursday, the index had touched 294 here, while it was at 263 on Phạm Văn Đồng Street. An index of above 300 will have adverse effect on people, according to the US Environment Protection Agency. Hà Nội People's Committee Chairman Nguyễn Đức Chung admitted that the city's air quality was at "red alert level". At a recent meeting with concerned agencies, Chung had said that the high level of air pollution was the result of the large number of cars and motorcycles in the city that have crossed their expiry dates. "Hà Nội has nearly six million motorcycles, of which 2.5 million crossed their expiry … [Read more...] about Air pollution in Hà Nội reaches hazardous levels – Environment – Vietnam News Politics, Business, Economy, Society, Life, Sports